54178-94-8Relevant articles and documents
Yellow azopyrazoline dye releasing redox compounds for photographic color transfer
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, (2008/06/13)
A photosensitive element comprising a support having thereon at least one photosensitive silver halide emulsion layer and one of said layers having associated therewith a yellow image dye-releasing compound having a formula as follows STR1 wherein Car represents a sulfonamidophenol or sulfonamidonaphthol carrier moiety which, as a function of oxidation under alkaline conditions, releases a diffusible dye from said compound. X represents a bivalent linking group of the formula --R1 --Ln --R1p -- where each R1 can be the same or different and each represents alkylene phenylene; or substituted phenylene; L represents a bivalent radical selected from oxy, carbonyl, carboxamido, carbamoyl, sulfonamido, sulfamoyl, sulfinyl or sulfonyl; n is an integer having a value of 0 or 1; p is 1 when n equals 1 and p is 1 or 0 when n equals 0, provided that when p is 1 the carbon content of the sum of both R radicals does not exceed 14 carbon atoms; R represents hydrogen or alkyl; J represents a bivalent radical selected from sulfonyl or carbonyl; m and q each represent an integer having a value of 0 or 1; E represents hydrogen, halogen, alkyl or alkoxy; Z represents hydrogen or an electron withdrawing group selected from cyano, trifluoromethyl, alkylsulfonyl, substituted alkylsulfonyl, phenylsulfonyl, or substituted phenylsulfonyl; a carboxylic acid ester having the formula --COOR2 wherein R2 is alkyl, phenyl or substituted phenyl; sulfo, a sulfamoyl radical having the formula --SO2 NR3 R4 wherein R3 represents hydrogen or alkyl, and R4 represents hydrogen, alkyl, substituted alkyl; benzyl, phenyl, substituted phenyl; alkylcarbonyl, or phenylcarbonyl, with the proviso that the carbon content of the sum of R3 and R4 not exceed 14 carbon atoms; a carbamoyl radical having the formula --CON(R3)2 wherein each R3 can be the same or different and is as described previously; and M represents hydrogen, a solubilizing group or precursor thereof selected from carboxy, sulfo, a sulfamoyl radical as described for Z or a carboxylic acid ester as described for Z.